Since discovering the promotion ended, Chris added on his Facebook page: ‘A lot of people are asking if I am stopping the challenge. No, of course I’m not!

‘In truth, whether the promotion of free food for life is valid or not, I will still be trying to make it to every chain of my favourite restaurant.’

when Nando's bosses heard about his efforts - which have seen him gain a stone in weight since the start of the year - they have now agreed to honour their old promotion if Chris can eat in the chain's 900 other branches worldwide.

Chris said: 'I'm thrilled that they have recognised my efforts, and I'm more determined than ever to complete the challenge.'

Chris has been charting his Nando's challenge on social media and has posed for a photograph in each restaurant, with his hand up to his forehead in a 'Nando's pose' which imitates a cockerel- the symbol of Nando's.

The UK has 280 Nando's restaurants, and with just over 100 in London, Chris made sure he started his challenge in the capital.

Chris said: 'It all started when I was really busy and kept popping into my local Nando's for dinner. Before I knew it, I had been in every day for two weeks.

Nandos said they would honour their promotion if Chris ate at every branch in the world. (Caters)

'I still loved the food so I started visiting friends all over London and trying out different Nando's restaurants wherever I went.'

'Once I have done the UK, I am then going to move onto Australia where there are around 300. I am hoping to do as many as I can in just 40 days- I plan on eating Nando's for every meal.'

Currently, filmaker Chris dines in the Portuguese chain restaurant three to four times a week and offers a review of the restaurant, food, and occasionally his dining company on his Facebook page.

He has documented his challenge by taking a photograph of himself in every restaurant he dined in.

Chris said: 'I have started to receive requests from random people who invite me to join them for food in their local Nando's.'

Chris shows off the various cards with which he visits Nandos. (Twitter/Christopher Poole)

'I've been invited on about 10 Nan-dates so far, and it's great to meet new people who love their food as much as I do.'

'I even have managers of different branches asking me to come and visit and review their restaurant.'

'I have spent around £1,000 on all the food and I am still not sick of it. I have put on about a stone in weight as well so I am trying to stay away from the Peri Peri chips.'

Christopher likes to vary his food choices, but his favourite meal is a chicken pitta with cheese and pineapple, a chicken leg and Peri Peri chips.

'I still have a lot of Nando's to visit but I am looking forward to exploring the world while eating my favourite meal. And it will be worth it in order to have unlimited chicken for life.'

A spokesperson for Nando’s said: 'We’re always delighted to hear from Nando’s superfans and the lengths they go to for their love of PERi-PERi chicken.

'Some time ago, we ran a challenge that rewarded individuals with free Nando’s if they could prove they ate at every Nando’s restaurant in the world.

'There are now so many Nando’s worldwide, that we don't run the challenge any more.

'However, if Christopher Poole completes his attempt, we will happily honour our original promise and give him free Nando’s for life.'